US10611345B2 - Mobile operating machine - Google Patents

Mobile operating machine Download PDF

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Publication number
US10611345B2
US10611345B2 US16/248,181 US201916248181A US10611345B2 US 10611345 B2 US10611345 B2 US 10611345B2 US 201916248181 A US201916248181 A US 201916248181A US 10611345 B2 US10611345 B2 US 10611345B2
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Prior art keywords
stabilizing
box
legs
operating machine
mobile operating
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Expired - Fee Related
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US16/248,181
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English (en)
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US20190217826A1 (en
Inventor
Paolo Dario Maini
Paolo Sala
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CIFA SpA
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CIFA SpA
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Assigned to CIFA S.P.A. reassignment CIFA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAINI, PAOLO DARIO, SALA, PAOLO
Assigned to CIFA S.P.A. reassignment CIFA S.P.A. CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR DOC DATE PREVIOUSLY RECORDED ON REEL 048013 FRAME 0843. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: MAINI, PAOLO DARIO, SALA, PAOLO
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
    • B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck

Definitions

  • the present invention concerns a mobile operating machine, in particular a mobile operating machine which, during working operations, requires stabilizing legs, for example a concrete pumping machine, a truck-mounted pump, a crane, for example a telescopic crane, or other.
  • Mobile operating machines such as concrete pumping machines for example, generally consist of a vehicle which has a front driving cab and a back frame, on which a work device is positioned, for example an articulated arm for pumping concrete.
  • the work device is moved by a movement turret, for example a rotatable turret on which the work device is positioned.
  • these mobile operating machines generally require stabilizing legs, that is, at least a pair of front stabilizing legs and at least a pair of back stabilizing legs which, when necessary and during work operations, allow a stable support of the mobile operating machine on the ground.
  • Vertical hydraulic actuators are associated with the free and terminal ends of the front stabilizing legs and the back stabilizing legs, which allow to lift and stabilize the position of the entire mobile operating machine.
  • the front stabilizing legs comprise telescopic tubular elements that can be extended in a substantially horizontal direction, that is, parallel to the ground, while the back stabilizing legs are normally pivoted to the support structure, therefore they can be rotated, generally around an axis substantially perpendicular to the ground, with respect to the support structure, so as to be opened or closed.
  • the back stabilizing legs are normally disposed, in the inactive position, parallel to the longitudinal extension of the mobile operating machine and can be opened, if necessary, by rotation around rotation pins or suchlike, to be disposed in an active position and resting stably on the ground with said vertical hydraulic actuators.
  • the front stabilizing legs pass from an inactive retracted position to an active elongated position, in which they rest stably on the ground by the activation of said vertical hydraulic actuators.
  • front or back stabilizing legs are housed in, or connected to, support structures which are very heavy, bulky and which can require long assembly and mounting times on the mobile operating machine.
  • the rotation points, or joints, of the back stabilizing legs and the extension or sliding zones of the front stabilizing legs with respect to the support structure do not normally allow an optimal distribution of the loads, both with regard to the back part of the support structure, and also with regard to the front part thereof.
  • the movement turret is attached to the back frame of the operating machine, usually in a forward position, that is, toward the front driving cab of the vehicle.
  • This disposition in addition to increasing the bulk in length of the operating machine, also causes an imbalance in the distribution of loads between the pair of front stabilizing legs and the back ones.
  • the distribution of loads therefore, is not homogeneous and uniform, and can generate imbalances on the mobile operating machine or different stresses between the front and back stabilizing legs.
  • Known support structures for stabilizing legs are also not very compact and rather bulky and, normally, also house some service systems of the operating machine itself, making it difficult to access, if any possible intervention is required, for example maintenance or other.
  • One example of such service systems can be the oil tank, normally integrated into the support structure of the stabilizing legs.
  • US 2014/0246100 A1 describes a truck-mounted pump for delivering concrete in which there is a stabilization system equipped with extendable front legs and back legs articulated with respect to a pivoting point. This document does not provide details and characteristics of the pivoting positions of the back legs with respect to the structure that contains the front legs.
  • DE 100 32 622 A1 describes a truck-mounted pump equipped with four support legs in which at least the front legs are both telescopically extendable and rotatable with respect to a pivoting point.
  • CN 103158682 and WO 2015/198089 concern support structures for truck-mounted pumps equipped with four telescopically extendable legs.
  • One purpose of the present invention is to provide a mobile operating machine which is provided, in particular, with a support structure for the stabilizing legs which allows a homogeneous and uniform distribution of the loads in all its parts and thus allows to prevent undesired imbalances and stresses on the machine.
  • Another purpose of the present invention is to provide a mobile operating machine which allows to optimize and simplify the allocation of spaces with regard to service systems, for example the oil tank.
  • Another purpose of the present invention is to provide a mobile operating machine which is equipped with a support structure for the stabilizing legs, which is compact and not bulky compared with known solutions, which is also easy to assemble, has low costs and is easy to access the various components, which, in any case, are advantageously fewer in number than what is required in known solutions.
  • Another purpose of the present invention is to provide a mobile operating machine which, thanks in particular to its compactness, allows simple and optimal maintenance and monitoring operations, compared with known articulated structures of greater complexity which therefore have greater difficulties in inspection, monitoring and maintenance.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a mobile operating machine is provided with at least a work device supported by a movement turret, at least a pair of stabilizing front legs and at least a pair of stabilizing back legs.
  • Both the front and back stabilizing legs have a retracted transport position and an extended working position.
  • the mobile operating machine comprises a support structure provided with at least a pair of box-like elements configured to house the stabilizing front legs or back legs, and at least a positioning seating of the movement turret made in a crossing zone of the box-like elements, each box-like element is provided with a first end that is open and through which a respective stabilizing front leg, or back leg, is slidingly mobile and a second end, opposite the first end and in correspondence with which a respective stabilizing back leg, or front leg, is pivoted, so as to rotate around a corresponding axis of rotation.
  • This constructive configuration of the mobile operating machine allows to obtain a support structure having a distribution of loads, both toward the front stabilizing legs and toward the back stabilizing legs, which is extremely homogeneous and balanced.
  • the configuration of the present invention allows to obtain discharge paths of the mechanical loads, which from the movement turret are discharged toward the stabilizing legs, which are substantially equal between the front stabilizing legs and the back stabilizing legs.
  • the support structure is formed by a single block, for example made of sheet metal or similar, suitable to define the box-like elements and the positioning seating for the movement turret.
  • the front stabilizing legs are each slidably inserted in a respective box-like element, and can be extended from it in order to move between the two operating positions, while the back stabilizing legs are each pivoted to a respective second end of one of the box-like elements and rotate with respect to it to move between the two operating positions.
  • the positioning seat of the movement turret can be made above the box-like elements and through it an axis of rotation of the movement turret passes.
  • the axis of rotation of the movement turret can be substantially parallel to the rotation axes around which the back or front stabilizing legs rotate.
  • the support structure can be substantially cross shaped, in the center of which the housing seating of the movement turret is positioned.
  • the front or back stabilizing legs can comprise extending telescopic elements along the sliding axes.
  • the extending telescopic elements can be inserted axially into the respective box-like elements to assume the compact condition.
  • the sliding axes of the extending telescopic elements can be offset in height.
  • the sliding axes can intersect the axis of rotation of the movement turret.
  • Each axis of rotation of the back stabilizing legs also intersects one of the sliding axes of the telescopic elements and the axis of rotation of the movement turret.
  • the axis of rotation of the movement turret can be substantially perpendicular to the sliding axes.
  • the mobile operating machine can comprise service systems, separate and independent from the support structure of the front and back stabilizing legs and of the housing seating of the movement turret.
  • FIG. 1 is a plan view of a mobile operating machine with stabilizing legs according to the invention
  • FIG. 2 is a lateral view of the mobile operating machine in the working position of FIG. 1 ;
  • FIG. 3 is a lateral view of a support structure of the stabilizing legs
  • FIG. 4 is a three-dimensional view of the support structure in FIG. 3 ;
  • FIG. 5 is a plan view of the support structure of the stabilizing legs in the previous drawings.
  • FIG. 6 is a section view of the support structure considered along the line VI-VI of FIG. 5 .
  • FIG. 1 and FIG. 2 a mobile operating machine 10 according to the present invention is shown.
  • the mobile operating machine 10 comprises a work device 11 , at least a pair of front stabilizing legs 12 a and 12 b and at least a pair of back stabilizing legs 13 a and 13 b.
  • the front and back stabilizing legs 12 a and 12 b , 13 a and 13 b can comprise telescopic elements 21 and 22 for resting on the ground, see also FIG. 4 .
  • the telescopic elements 21 and 22 can be associated with the front and back stabilizing legs 12 a , 12 b , 13 a and 13 b , each in correspondence with respective free terminal ends of the latter.
  • the telescopic elements 21 and 22 can be telescopically slidable, to be made to rest on the ground, in a transverse direction, or orthogonal to the oblong development of the front and back stabilizing legs 12 a , 12 b , 13 a and 13 b with which they are associated.
  • the work device 11 can be, for example, an articulated arm for pumping concrete, shown in FIG. 1 and FIG. 2 in the lowered and inactive position.
  • the work device 11 is supported and moved by a movement turret 14 , able to allow at least one rotation thereof around an axis of rotation V, which can be substantially vertical during use.
  • the mobile operating machine 10 also comprises a vehicle 15 provided with a driving cab 16 and a back frame 17 , on which the work device 11 is positioned.
  • the front and back stabilizing legs 12 a , 12 b , 13 a and 13 b are supported by a support structure 18 , provided with at least one pair of box-like elements 19 a and 19 b which cross in a crossing zone Z.
  • each box-like element 19 a , 19 b has an oblong development and is disposed transverse to and overlapping the other box-like element 19 b , 19 a , to define a cross shape.
  • Each box-like element 19 a , 19 b is provided with a respective tubular cavity in which a respective front stabilizing leg 12 a , 12 b can be inserted slidingly, as described below.
  • the box-like elements 19 a , 19 b can be defined by section bars having a polygonal cross-section, preferably rectangular.
  • the front stabilizing legs 12 a , 12 b can have a cross-section shape substantially identical to that of the box-like elements 19 a , 19 b to allow their reciprocal sliding coupling.
  • each tubular cavity is at least open in correspondence with one of its first ends to allow the insertion and sliding of the respective front stabilizing leg 12 a , 12 b.
  • the support structure 18 is provided, in the crossing zone Z of the box-like elements 19 a and 19 b , with a housing seating 20 to house the movement turret 14 .
  • the housing seating 20 defines a guide for the rotation of the movement turret 14 around the axis of rotation V.
  • the support structure 18 is formed by a single block, for example made of sheet metal or suchlike, suitable to define the box-like elements 19 a and 19 b and the housing seating 20 of the movement turret 14 .
  • the support structure 18 can therefore be substantially cross-shaped, at the center of which the housing seating 20 of the movement turret 14 is positioned.
  • the housing seating 20 of the movement turret 14 can have a cylindrical shape and is able to house at least a corresponding cylindrical part of the movement turret 14 .
  • the housing seating 20 of the movement turret 14 is positioned above the crossing zone Z of the box-like elements 19 a and 19 b.
  • This positioning of the movement turret 14 allows to directly discharge the loads acting on the latter toward the box-like elements 19 a , 19 b , preventing deviations of the stress loading paths as occurs, for example, in known solutions.
  • the axis of rotation V of the movement turret 14 is disposed at the center of the seating 20 , hence substantially at the center of the movement turret 14 .
  • the front stabilizing legs 12 a and 12 b can be selectively inserted/extracted, by means of telescopic sliding, into/from the tubular cavity of the box-like element 19 a , 19 b to respectively assume an inactive position, retracted inside the tubular cavity, and an active position extended outside the tubular cavity, in which the operating machine is stabilized.
  • each tubular cavity of the box-like elements 19 a , 19 b defines a respective sliding axis S 1 and S 2 along which the front stabilizing legs 12 a , 12 b are slidingly moved.
  • the front stabilizing legs 12 a and 12 b comprise extending telescopic elements 24 a and 24 b which, in the retracted position, are housed in a corresponding box-like element 19 a and 19 b of the support structure 18 .
  • Each box-like element 19 a and 19 b comprises a first end 23 a and 23 b which is open and is able to allow the front stabilizing legs 12 a , 12 b to enter and exit, that is, in this case the extending telescopic elements 24 a and 24 b of the front stabilizer legs 12 a and 12 b.
  • the telescopic elements 24 a and 24 b of the front stabilizing legs 12 a and 12 b can be extended in the operating position by means of corresponding actuators 26 a and 26 b ( FIG. 6 ).
  • the telescopic elements 24 a and 24 b of the front stabilizing legs 12 a and 12 b are extendable or retractable along the sliding axes S 1 and S 2 which both pass through the crossing zone Z of the support structure 18 .
  • the sliding axes S 1 and S 2 therefore ultimately also the box-like elements 19 a and 19 b , are offset in height so that the front stabilizing legs 12 a and 12 b , that is, their telescopic elements 24 a , 24 b , do not interfere with each other and therefore have the necessary space for sliding inside the corresponding box-shaped elements 19 a and 19 b of the support structure 18 .
  • Each box-like element 19 a and 19 b of the support structure 18 comprises a second end 25 a and 25 b , opposite the first end 23 a and 23 b , on which the back stabilizing legs 13 a and 13 b are pivoted, which therefore can rotate with respect to corresponding axes of rotation R 1 and R 2 from an inactive closed position to an open operating position, or vice versa.
  • the back stabilizing legs 13 a and 13 b can be connected to the support structure 18 and in particular to the second end 25 a and 25 b of the box-like elements 19 a and 19 b by means of a rotation pin 27 a and 27 b defining an axis of rotation R 1 and R 2 , for rotation of the back stabilizing legs 13 a , 13 b , see FIG. 4 or 5 for example.
  • the back stabilizing legs 13 a and 13 b can pass from the closed inactive position to the open operating position by rotation around the axes of rotation R 1 and R 2 .
  • Corresponding actuators 28 a and 28 b can be connected to the back stabilizing legs 13 a , 13 b and to the support structure 18 , to take the back stabilizing legs 13 a , 13 b from the inactive position to the active position, or vice versa.
  • any one of the two sliding axes S 1 and S 2 of the telescopic elements 24 a or 24 b of the front stabilizing legs 12 a or 12 b is aligned with the axis of rotation R 1 or R 2 of the corresponding back stabilizing leg 13 a or 13 b.
  • the housing seating 20 for the movement turret 14 is made in the crossing zone Z in which the sliding axes S 1 and S 2 and thus the box-like elements 19 a and 19 b converge.
  • each box-like element 19 a , 19 b are aligned with each other along the respective sliding axis S 1 , S 2 .
  • each sliding axis S 1 , S 2 intersects the axis of rotation V of the movement turret 14 .
  • each sliding axis S 1 , S 2 of one of the front stabilizing legs 12 a , 12 b intersects one of the axes of rotation R 1 , R 2 of one of the back stabilizing legs 13 a , 13 b , see the plan view in FIG. 5 .
  • this reciprocal disposition of the sliding axes S 1 and S 2 and of the axis of rotation V allows to distribute the mechanical loads induced by the movement turret 14 toward the front and back stabilizing legs in a uniform manner.
  • the mechanical loads can be discharged from the center of the housing seating 20 toward the first ends 23 a , 23 b and toward the second ends 25 a , 25 b along a substantially radial path, with respect to the center of the housing seating 20 . This prevents excessive deviations of the loads that can cause extremely high intensification of the stresses in correspondence with specific components, with consequent damage thereto.
  • the opposite ends 23 a and 23 b and 25 a and 25 b of the box-like elements 19 a and 19 b can be disposed close together or in proximity to the housing seating 20 of the movement turret 14 .
  • the housing seating 20 has a substantially cylindrical conformation and that the opposite ends 23 a , 23 b , 25 a , and 25 b are located on the periphery and tangent to the housing seating 20 .
  • This disposition allows to further increase the compactness of the support structure 18 and further improve the distribution of loads, consequent to the use of the front and back stabilizing legs 12 a and 12 b and 13 a and 13 b.
  • the distance between any one of the axes of rotation R 1 or R 2 of the back stabilizing legs 13 a or 13 b and the axis of rotation V of the movement turret 14 can also be substantially equal to the distance between the axis of rotation V and any one of the open ends 23 a or 23 b of the box-like elements 19 a or 19 b.
  • the axis of rotation V of the movement turret 14 can be substantially perpendicular to the sliding axes S 1 and S 2 of the telescopic elements 24 a and 24 b.
  • the axis of rotation V of the movement turret 14 can also be parallel to the axes of rotation R 1 and R 2 of the back stabilizing legs 13 a and 13 b.
  • the mobile operating machine 10 will naturally be equipped with service systems 29 , for example an oil tank or other.
  • the service systems 29 can be positioned outside the support structure 18 , as shown schematically in FIG. 5 .
  • the box-like elements 19 a , 19 b define between them a concavity 30 comprised between the second ends 25 a , 25 b of the box-like elements 19 a , 19 b , and in which the service systems 29 can be installed in a selectively removable manner.
  • the support structure 18 can be provided with connection and support brackets 31 , installed in the concavity 30 and configured to allow to connect and support the service systems 29 .
  • This solution allows to greatly simplify the step of allocating spaces with regard to service systems 29 , and in particular an oil tank.
  • the oil tank unlike in known solutions, can be separate and independent from the support structure 18 , which therefore has only a structural function.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Eye Examination Apparatus (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Transplanting Machines (AREA)
US16/248,181 2018-01-16 2019-01-15 Mobile operating machine Expired - Fee Related US10611345B2 (en)

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IT201800001069A IT201800001069A1 (it) 2018-01-16 2018-01-16 Macchina operatrice mobile
IT102018000001069 2018-01-16

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US10611345B2 true US10611345B2 (en) 2020-04-07

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US11753253B1 (en) * 2022-12-28 2023-09-12 Walter Bynum Feeder assembly for delivering material to a main boom assembly
US11933058B2 (en) * 2021-09-23 2024-03-19 Cifa S.P.A. Hybrid mobile operating machine and its functioning method

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IT201800001069A1 (it) * 2018-01-16 2019-07-16 Cifa Spa Macchina operatrice mobile
CN215672920U (zh) * 2021-08-31 2022-01-28 三一汽车制造有限公司 固定转塔及作业机械
CN119706647B (zh) * 2025-02-27 2025-05-13 山西路桥智慧交通信息科技有限公司 一种用于高速公路建设的抗倾覆起重机

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EP3511285A1 (de) 2019-07-17
EP3511285B1 (de) 2020-10-21
IT201800001069A1 (it) 2019-07-16
US20190217826A1 (en) 2019-07-18

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